i need some help every one please look

.First thing has being happening for a whail now
what happens is that i set my fps at 280 right after i play 1 -3 games i go and cronothe gun and it spiked up to 350 fps this keeps happening and is anoying becuse after every game i have to crono the gun
some one tell me what this is please

.Second thin that just happened to day (but note the reguler crnobrok so i was using the little protable one)
what happened was that i was at the crono and it was shooting at 150 130 fps i put it up and keped on doing it and once in a while would hit the 300's and keeped shootin at 150 i think is the crono ama clean my cp rgg justin case but can some one tell me what this is

rollback is what can cause chopping ... when the paintball rolls back a little it allows the next ball in the stack to come down a bit ... which under the right circumstances can cause the bolt to clip the bottom of the ball breaking it ... or push it up hard enough to break it

creeping is caused by improper lubing

when you lube your cp reg make sure theres a decent amount of lube on the seat (the little button looking thing that is in the lower half of the reg) .... you cant miss it

had this problem with my fusion, to fix the reg creep you need to clean and re lube your reg if your not familiar with how to service a CP reg check out there website or check some of the sticky's might be in there,NOTE if you put the reg back together wrong you risk seriously damaging your gun!!! so do a little research before you just jump into it. that's the best advice i can give. hope it helps